Quality Japanese-Quartz movementMineral crystalCase diameter : 50 mmStainless-steel case; Black dial; Date functionWater-resistant to 99 feet (30 M)

Quartz movementCream chronograph dialStainless steel case brown leather bandMineral crystalsWater-resistant to 99 feet (30 M)

Quartz movementWhite chronograph dialRose gold plated steel case brown leather bandMineral crystalsWater-resistant to 330 feet (100 M)

Digital heart rate monitor watch designed for elite athlete training50-lap chronograph calculates average heart rate per lap5 interval timers with individual heart rate target zonesWireless Data Xchanger USB lets you synch your watch and PC10-workout memory; compatible with TrainingPeaks software

TX proprietary high-hand Chronograph movementFour-hour fly-back chronograph (one-fifth of a second accuracy)Dual multifunction retrograde displaysTachymeter scaleWater-resistant to 330 feet (100 M)

Proprietary six hand movement with four independent motors driving each functionLinear chronograph measures up to 4 hours on the lower hand with a 30 minute linear indicator, with 2nd time zoneMulti-functional retrograde and linear handsSuper LumiNova dial indices, date windowWater resistant up to 330 feet (100 M)

Proprietary six hand movement with four independent motors driving each functionFly-back chronograph with compass and dual time featureElectronic compass with magnetic declination compensationTachymeter, super LumiNova dial indices, textured dialWater resistant up to 330 feet (100 M)

Preset your Desired Heart Rate Target Zone to One of Six Ranges, Review Workout Average and Peak Heart RateReview Time-In-Zone, Recovery Heart Rate, and Calories Burned100-hour chronograph with lap and split, either in large digits, 50-lap memory with average heart rate per lap100-hour, 2-mode countdown timer, Alarm with 5-minute backup, INDIGLO night-light with NIGHT-MODE featureOwner-Replaceable Battery; Data Recorder 2 and Data Recorder Compatible; water resistant to 100m

Displays hours, minutes, seconds and date at 3 on superimposed dials.IPB treated stainless steel case with matte finish.Exclusive crown protection device, back of case sealed with 7 external screws and customized U-Boat movement holder.Powered by 25 jewels with 28800 vibrations per hour.Water-resistant up to 330feet

Displays hours, minutes, seconds chronograph with counter at 12 for hours, 6 for minutes & 3 for seconds plus date at 9.Stainless steel case with a high quality sapphire crystal.Exclusive crown protection device, back of see through case displays U-Boat stamped rotor and movement customized for U-Boat.Powered by 25 jewels with 28800 vibrations per hour.Water-resistant up to 330feet